# ****************************************************************************** # Copyright 2017-2019 Intel Corporation # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # ****************************************************************************** # function check existence of cmake and environment variable and read their value # If the variable is not defined then the supplied default value used # example: # ngraph_var(NGRAPH_VARIABLE_NAME DEFAULT "OFF") # checks if variable NGRAPH_VARIABLE_NAME was passed in via the cmake command line # if found then passed in value is used # else checks for the existence of the environment variable NGRAPH_VARIABLE_NAME # if found it's value is used # if none of the above then the default value is used function(NGRAPH_VAR) set(options) set(oneValueArgs DEFAULT) set(multiValueArgs) cmake_parse_arguments(NGRAPH_VAR "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) if (NOT DEFINED ${NGRAPH_VAR_UNPARSED_ARGUMENTS}) set(${NGRAPH_VAR_UNPARSED_ARGUMENTS} ${NGRAPH_VAR_DEFAULT} PARENT_SCOPE) if(DEFINED ENV{${NGRAPH_VAR_UNPARSED_ARGUMENTS}}) set(${NGRAPH_VAR_UNPARSED_ARGUMENTS} $ENV{${NGRAPH_VAR_UNPARSED_ARGUMENTS}} PARENT_SCOPE) endif() endif() endfunction()